<!DOCTYPE html>
<html>

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Sugar</title>
</head>

<body>
  <script>

    const arr = [{ isSelect: false }, { isSelect: false }, { isSelect: false }];

    // every()  每一项都为真，最终才为 true
    // some()   某项为真，最终就为 true
    const res = arr.some(item => item.isSelect);

    console.log(res);
  </script>
</body>

</html>